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ACS712 Current Sensor Module +/- 20A
ACS712 Current Sensor Module +/- 20A

Price: $2.95

Quantity in Stock:5

Availability: Ships same day*
Product Code: AD467


This current sensor board is based on the Allegro ACS712ELCTR-20A bi-directional hall-effect current sensor chip that detects positive and negative flowing currents in the range of minus 20 Amps to positive 20 Amps. The board operates at 5V DC and the current flow through the sensor is converted to an output voltage starting at 1/2Vcc (or 2.5V) for no current flow and moves up 100mV per amp for positive current or down -100mV per amp for negative current.

For example:
The output voltage at +2 amps would be (2.5V + (0.1 * 2)) = 2.7 V
The output voltage at -5 amps would be (2.5V - (0.1 * 5)) = 2.0 V

Product Contents:

  • 1 — ACS712 Current Sensor Module 20A

VCC 5V DC Nominal
Measurement Range -20 to +20 A
Voltage at 0A VCC/2 (Nominally 2.5V DC)
Scale Factor 100 mV per A
Length 31.73 mm (1.24")
Width 13.25 mm (0.52")
Height 14 mm (0.55")
Weight 2.72 g (0.096 oz)

Average Rating: 5 of 5 Total Reviews: 1 Write a review

  0 of 0 people found the following review helpful:
Great prices. FAST shipping February 26, 2018
By: Eric KE6US from Riverside, CA United States  
Does what I want, but I think I should have bought the 30A. Cheap enough this one can go in the drawer, and I'll buy another for current project.

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